JPH11513236A - Switchgear that can control the movement of the draw-out type circuit breaker - Google Patents

Abstract

(57) [Summary] According to the present invention, a draw-out type circuit breaker (2) moves relative to a guide frame (8) in a driving position (BS), a test position (TE) and a disconnection position (TR). And a switchgear provided with a closing mechanism (32) for preventing movement of the drawer-type circuit breaker (2). The lock device (10) releases the operating shaft (31) by the closing mechanism (32) at the disconnection position (TR) of the drawer type circuit breaker (2) with the position detection plate (11). Such switching devices are used in low-voltage circuit breaker installations.

Description

DETAILED DESCRIPTION OF THE INVENTION              Switchgear that can control the movement of the draw-out type circuit breaker   The present invention relates to the guide frame in the operating position, the test position and the disconnection position. For controlling the movement of the drawer-type circuit breaker relative to the drawer-type circuit breaker A closing mechanism for preventing movement of the circuit breaker.   A switchgear of this kind is described, for example, in DE-A 35 45 780. It is known from the description. In this configuration, the position of the switchgear door is Lockable or releasable stopper device generally opens the door of the switchgear Tool to move the draw-out circuit breaker within the guide frame when the Is not attached. The stopper device itself is in all positions, that is, the operating position. , Fixed to a guide rod that can be blocked by a bar at the test position and disconnection position The bar is directly connected via a flexible transmission mechanism to the opening of the switchgear door. It can be operated through different positions. This measure is exclusively for personal protection.   The object underlying the present invention is to provide safety measures for such a switchgear in equipment. Extending for protection, but with little change to existing architectural solutions Maintenance or additional safety measures at the lowest possible equipment cost It is to be. According to the invention, the object is to provide a closing machine with a locking device The pull-out circuit breaker in the preferred position, especially in the disconnect position The extension circuit breaker is similarly prevented from moving, but guides the drawer circuit breaker. Controlled to allow manual withdrawal from the frame. Achieved.   With the locking device according to the invention, a number of protection measures for the equipment, namely the switching device Incorporates recognition and evaluation of priority positions of draw-out circuit breakers in guide frames Easily meet a wide variety of safety conditions for equipment protection Protection measures that can be implemented can be easily realized.   According to an advantageous embodiment of the invention, the locking device is pivotally mounted on the support plate. It has a position detection plate, which is pivotally connected to the support plate via a connecting rod. The position detecting plate is coupled with the cam plate supported by the Combined with an operating rope that transmits the Associated with the unlocked position of the closed cylinder lock which can only be The locking mechanism cooperates with the lock plate fixed in position by the restraining spring, further blocking Have been to be.   Displays the status of the draw-out type circuit breaker and the rotation position of the closing cylinder lock of the switchgear door. Only in the priority position by the position detection plate that detects in connection with the operating rope shown That is, in this case the key release at the disconnect position of the draw-out type circuit breaker is simple Is controlled. For all other priority positions, namely the operating and test positions, In this case, the key cannot be removed from the closing cylinder lock of the switchgear door. Lock This is because the closing mechanism is locked by the plate.   According to another advantageous configuration of the invention, the support plate is a component of the guide frame. And placed under the drawer-type circuit breaker. This allows the switchgear to be exclusively used Existing mechanical structure for locking the movement of the draw-out circuit breaker in the frame A very simple and compact locking device acting on the element is obtained.   In a still further advantageous configuration of the invention, the locking device comprises a position detecting plate and a cam plate. It has an integrated control unit with integrated functions. Therefore, in this case, the connecting rod is omitted. You. Of course, the premise for this is that the configuration of the lock plate is Modified in the lower area, thereby free space in the area of the draw-out circuit breaker Is no longer present.   The invention will be explained in more detail by means of embodiments shown in three figures. In the drawing FIG. 1 shows a basic configuration of a switchgear for a low-voltage circuit breaker, and FIGS. The two main types of locking devices related to the state of the draw-out circuit breaker in the Operating conditions.   FIG. 1 shows that the drawer-type circuit breaker 2 can move in the guide frame 8. 1 shows a basic configuration of a switchgear 1 that can be cut. The drawer-type circuit breaker 2 is moved In this case, the movement of the draw-out type circuit breaker 2 is tested from the operating position. It reaches the disconnection position via the position. Further, the support plate 7 is shown in this figure. However, a locking device is arranged, and the operating rope 3 Position is working. This closing cylinder lock 6 can be operated from the outside, and It is arranged on the door 5.   2 and 3 show the locking device 10 in two different operating states, FIG. FIG. 3 shows a state in which the movement of the circuit breaker 2 is not locked. It shows a state in which the movement of the road circuit breaker 2 is locked.   In FIG. 2, the drawer-type circuit breakers 2 have different priority positions, that is, operating positions. It shows that it can be located at BS, test position TE and disconnection position TR. The city A position detecting plate 11 is provided in the lock device 10 to detect the priority position of the degree. This is directly supported by the bent portion of the support plate 7 at the pivot bearing 13. You. The position detecting plate 11 is held in a priority state by a guide spring 12. further The operation rope 3 is engaged with the position detection plate 11, and an end (not shown) It is connected to the contour of the closing cylinder lock 6 (FIG. 1). Further, the locking device 10 Has a cam plate 21, which is likewise connected to the position detecting plate 11 by the connecting rod 14. Is joined to. The cam plate 21 of the lock device 10 also has a pivot bearing 22 Rotatably supported in the range of the unmarked bent portion of the support plate 7 I have. On the upper side of the cam plate 21, a lock plate 23 is provided on the drawer-type circuit breaker 2. The lock plate is tilted by the action of the cam plate 21 and the closing mechanism 32 is Block or release access to the site. Other lock plate 23 A lock spring 23 acts on the lock plate 23 so that the lock plate 23 It is brought to the priority position in the state not receiving. The closing mechanism 32 is locked Unlocked because it can move in the axial direction when not The operating crank is fitted in a manner not shown on the operating shaft 31 at The link is thus coupled with the unlabeled hexagonal area of the operating shaft 31. Have been combined.   FIG. 3 shows a locked state of the lock device 10, which is a drawer-type circuit breaker. When the switch is in the disconnected position, the cylinder is closed by the operation of the key shown in FIG. By moving the lock so that the position detecting plate 11 can be operated, The cam plate 21 connected to the lock plate 23 through the connecting rod Is achieved by tilting so that its axial movement is blocked. This This allows the key to be pulled out only at the disconnect position of the draw-out type circuit breaker. In the operating position and also in the disconnecting position, the key is closed cylinder lock 6 ( It cannot be extracted from Fig. 1). In this state, the operating crank 4 (FIG. 1) Is not attached to the operation shaft 31 (FIG. 2), as a result, the draw-out type circuit breaker 2 (FIG. ) Is locked at the disconnection position. However, this locking means Regardless, the drawer-type circuit breaker 2 (FIG. 2) changes its disconnection position TR (FIG. 2). Can be pulled out of the guide frame. The lock plate 23 is therefore a cam plate 21 is released again after exceeding the inclination of 21, but of course, the draw-out type circuit breaker 2 The lock plate 23 is automatically mounted on the cam frame 2 again by being mounted on the frame again. When the position of No. 1 does not change, it is locked.

──────────────────────────────────────────────────続 き Continuation of front page (81) Designated country EP (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE), JP, US [Continued abstract]

Claims (1)

[Claims] 1. Guides at operating position (BS), test position (TE) and disconnection position (TR) Control the movement of the draw-out circuit breaker (2) relative to the frame (8) A device and a closing mechanism (32) for preventing movement of the draw-out type circuit breaker (2). In the opening / closing device (1) provided with a lock, the closing mechanism (32) is operated by the locking device (10). Priority position of the draw-out type circuit breaker (2), especially disconnection position (TR) At the same time, the movement of the draw-out type circuit breaker (2) is similarly prevented. So that the draw-out type circuit breaker (2) can be manually pulled out of the A switchgear capable of controlling movement of a drawer-type circuit breaker, wherein 2. A position detecting plate (1) in which a locking device (10) is pivotally supported by a support plate (7). 1), and this position detecting plate is likewise supported by a support plate (7) via a connecting rod (14). A cam plate (21) pivotally mounted on the cam plate (21), and the position detection plate (11 ) Is coupled to an operating rope (3) for transmitting the rotational position of the closing cylinder lock (6), Only achieved in this position in the priority position of the draw-out circuit breaker (2) exclusively In connection with the possible key release position of the closed cylinder lock (6), the locking spring (24) The closing mechanism (32) is actuated by the cooperative action with the locking plate (23) in the fixed position. 2. The switchgear according to claim 1, wherein the switchgear is further blocked. 3. Support plate (7) is a drawer-type circuit breaker as a component of guide frame (8) 3. The switchgear according to claim 2, wherein the switchgear is arranged below the vessel (2). 4. A lock device (30) functionally integrates the position detection plate (11) and the cam plate (21). 3. The switchgear according to claim 2, including a combined integral control unit.